Evolution Crank Pulley
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Evolution Industries B-Series Crankshaft Pulley Dampner

Evolution Industries will lessen the horsepower drain on your engine. SFI Approved underdrive pulley will increase horsepower by reducing the amount of power required to drive external engine accessories & by correctly countering the additional power robbing harmonic vibrations found in every "V" or inline engine. Bottom line is that you get more available horsepower to the wheels.
SFI approved

Evolution Industries H-Series Crank Pulley
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Evolution Industries K-Series Crankshaft Pulley Dampner

Evolution Industries will lessen the horsepower drain on your engine. SFI Approved underdrive pulley will increase horsepower by reducing the amount of power required to drive external engine accessories & by correctly countering the additional power robbing harmonic vibrations found in every "V" or inline engine. Bottom line is that you get more available horsepower to the wheels
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Evolution K20A Pulley A/C, P/S Removal Kit

K-20 Competition Pulley Set

Not only can you eliminate power robbing A/C (air conditioning) & P/S (power steering) pumps, but this Competition Pulley Set allows you to relocate the alternator to a lower position for the best center of gravity.